Receptacle-closure.



I No- 836,09'l. PATENTED NOV. 20, 1906.

- Y W. W. CHRISTENSEN.

REGEPTA GLE CLOSURE.

APPLICATION FILED MAR.8.190.

WALTER CHRISTENSEN, OF CHICAGO, ILLINOIS.

FlECEPTACLE-CLOSURE.

Specification of Letters Patent.

Patented Nov. 20, 1906.

Application filed March 8,1906. Serial No. 304,923-

of Illinois, have invented certain new and i useful Improvements in and I do hereby declare the following to be a Receptacle-Closures; 3

r l l i full, clear, and exact description of the invenj tion, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a novel construction in a receptacle-closure, the object being to provide a simple, cheap, and efficient closure in which the sealing medium may be easily removed without injury to it or neces sitating the use of tools of any description; and it consists in the features of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure 1 is a top plan view of a receptacle-closure constructed in accordance with my invention. Fig. 2 is a central vertical section on the line 2 2 of Fig. 1. Figs. 3, 5, 7, and 9 are top plan views of various embodiments of my invention. Figs. 4, 6, 8, and 10 are central vertical sections on the lines 4 4 of Fig. 3, 6 6 of Fig. 5, 8 8 of Fig. 7, and 10 10 of Fig. 9, respectively.

My said closure is designed particularly for milk bottles or jars and other large-mouthed receptacles and is intended particularly to enable the closing medium to be readily removed without the use of tools or the injury or destruction of said closing or sealing medium, so that the latter may again be replaced by the person removing the same after removing part of the contents of the receptacle.

The difficulties experienced by housekeepers in removing the disks from milk-bottles is a source of great inconvenience, and various means for remedying this difficulty have been devised; but all of these have, so far as I am informed, been found impractical for various reasons, chief among which probably is that the application of the remedy proposed involved greater expenditure for botties and disks, and as these are the source of no inconsiderable loss to milk dealers by reason of breakage it will readily be seen that they do notcourt the use of more expensive bottles for the convenience of their customers nor a greater expenditure for disks.

My present invention does not necessitate the use of a more expensive bottle or disk, the latter being identical with that at present employed for sealing milk-bottles, the only change from the present form of bottle being in the formation of the interior of the neck portion A of the bottle, jar, or other receptacle, and consists in providing therein either a single segmental shoulder or seat B for the disk C, which said shoulder or seat extends through an arc of approximately one hundred and eighty degrees or in providing several projections in said neck at different elevations, as will be hereinafter more fully described.

In milk-bottles at presentemployed the annular shoulder surrounding the seat for the disk is designed to hold the disk down upon the seat, and to this end said shoulder is gen erally made slightly greater in diameter at its base than at its mouth, and the disk is sprung into place through said contracted. mouth. This necessarily renders the removal of said disk difficult and necessitates the destruction thereof by puncturing the same with a sharp instrument, and such disks when once removed have by reason of having buckled in opposite directions lost their stiffness and will not again fit tightly, so that accidental tipping of the bottle will cause the contents to be lost.

The mouth of the bottle or receptacle is provided with a slightly conical or tapered inner wall, converging at its lower end, the taper thereof being very slight, so that the periphery of the disk C will be frictionally engaged by said inner wall over its entire surface when said disk is forced into the same and a hermetical seal will thus be effected. The said segmental shoulder or seat B acts simply as a stop to limit and determine the position of said disk, but does not perform any other function. At a point diametrically opposite the middle of said seat B the rim D of the neck of the bottle or receptacle is provided with a notch or other mark E to indicate the point at which pressure should be applied to the disk in order to remove the same, and by pressing with a finger on this part of said disk adjacent its periphery the same will turn upon the ends of the said seat B as a fulcrum and the diametrically opposite portion thus raised to a position where it may readily be grasped and removed. The

disk is thus preserved intact and may be readily replaced and removed frequently without injury to it and without difficulty to the operator and when in place affords a perfeet hermetical seal.

The disk will resist a very light pressure and will spring suddenly when the pressure applied acquires the requisite degree and may thus be suddenly canted to a greater degree than necessary and plunged at the depressed portion into the milk or other contents and force the same partially out of the bottle. To prevent this, suitable means may be disposed in the path of the depressed portion of said disk to limit the downward movement thereof, and such means may also serve as means for indicating the maximum level to which the receptacle shall be filled. Such means may be variously embodied, as may also the means, such as said shoulder or seat '13, for determining the lowest position of the disk.

Asshown in Figs. 3 and 4, a projection F may be disposed on the inner wall of the mouthportion A at apoint practically diametrically opposite the middle portion of said shoulder on seat B in the path of that portion of the disk which is to be depressed, or, as shown in Figs. 5 and 6, a shoulder G may extend entirely around the inner wall of the mouth A and substantially one-half of said shoulder be disposed at a downward incline, as indicated at H. r

- In Figs. 7 and 8 are shown two diametrically oppositely disposed projections I in the mouth of the bottle, whichserve the same purpose as said shoulder B to determine the normal lowest disposition of said disk C, while the notches or other marks E in the rim indicate where pressure is to be applied to the disk in order to cant the same, said marks E being employed in all cases. In addition to the two diametrically oppositely disposed projections K, corresponding with the projections I, (shown in Figs. 7 and 8,) I have shown in Figs. 9 and 10 two additional projections L disposed at a lower level in the mouth of the bottle substantially ninety degrees removed from the said projections K and serving to limit the downward movement of the depressed portion of said disk 0. The said disk C is preferably coated with parafiin, beeswax, or the like, so that it will be rendered moisture-proof and retain its stiffness, the latter being essential to the ends sought to be attained I claim as my invention 1. A receptacle-closure comprising the mouth portion of the receptacle having a tapered inner wall converging at its lower end, a disk adapted tofit snugly within said mouth,

'mouth adapted to determine the lowest position of said disk therein, said disk being capable ofbeing depressed to greater depth at one point in its periphery, whereby the same may be canted, and a projection disposed at a lower level in the said mouth in the path of and adapted to limit the degree of cant of said disk, substantially as described.

3. A receptacle-closure comprising the mouth portion of the receptacle having a tapered ihner wall converging at its lower .end, adisk adapted to fit snuglywithin said mouth, and means disposed on the inner wall of said mouth adapted to determine the lowest position of said disk therein, said disk being capable of being depressed to greater depth at one point in its periphery, whereby the same may be canted, there being an indicating-mark disposed on an exposed part of said mouth portion adapted to indicate the point at which said disk may be depressed below the plane of said firstnamed means.

4. A receptacle-closure comprising the mouth portion of the receptacle having a tapered inner wall converging at its lower end, a disk adapted to fit snuglywithinsaid mouth, and means disposed on the inner wall of said mouth adapted to determine the lowest posi tion of said disk therein, said disk being capable of being depressed to greater depth at one point in its periphery, whereby the same may be canted, and a projection disposed at a lower level in the said mouth in the path of and adapted to limit the degree of cant of said disk, there being an indicating-mark disposed on an exposed part of said mouth portion adapted to indicate the point at which said disk may be depressed below the plane of said first-named means.

In testimony whereof I have signed my name in presence of two subscribing witnesses.

WALTER W. CHRISTENSEN Witnesses:

RUDOLPH WM. Lorz, E. F. WILsoN. 

